<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Vanilla JS TreeView</title>
    <link rel="stylesheet" href="./treeview.css" />
  </head>
  <body>
    <div id="tree"></div>
    <button id="expandAll">Expand All</button>
    <button id="collapseAll">Collapse All</button>
    <script src="./index.js"></script>
  </body>
</html>
